Problem filling just a section of world map

From: Jeff (SSJAJ@XXXXXX)
Date: Fri Jun 09 1995 - 14:59:01 MDT


Dear NCAR folks,

     I have on a number of occasions had to generate B&W contour images
     over a world map. To get especially nice looking images I fill
     the world map with gray instead of drawing the continential
     outlines. This has been working out well until now. I want to
     do basically the same thing except instead of filling-up a gray
     world-map area, I want to only use part of the world-map, North
     America. I have tinkered around with this for a couple of days
     in an attempt to narrow down the problem, but I simply keep
     getting bad results (if any). It is obvious that there is some-
     thing I am missing in my understanding of how this works.

     Basically what I was doing that did not work was ...

               call mapstc('OU','PO')
               call maproj('CE',0.0,0.0,0.0)
               call mapset('MA',P1,P2,P3,P4) <-- P1-4 arrays of 0.'s
               call arinam(MAP,LMAP)
               call mapint
               call cpset('SET',0)
               call set(0.06, 0.94, 0.602, 0.139,
              * -150., -50., 20., 60., 1)
               call mapbla(MAP)

     However this works with the full world-map ....
               call set(0.013, 0.988, 0.27, 0.512,
              * -180., 180., -90., 90., 1)

     Any ideas or suggestions would be appreciated, thanx !!!

                                                 Jeffrey Jonas
     ssjaj@nasagiss.giss.nasa.gov
                                                 NASA/Institute for
     phone (212) 678-5501 Space Studies



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